Add stricter asserts to DIAGNOSTIC kernels to help catch mutex and

rwlock misuse.  In particular, this commit makes the following
changes:

  1. i386 and amd64 now count the number of active mutexes so that
assertwaitok(9) can detect attempts to sleep while holding a mutex.

  2. i386 and amd64 check that we actually hold mutexes when passed to
mtx_leave().

  3. Calls to rw_exit*() now call rw_assert_{rd,wr}lock() as
appropriate.

ok krw@, oga@; "sounds good to me" deraadt@; assembly bits double
checked by pirofti@

0 files changed, 0 insertions, 0 deletions